platform_build_soong/cc/snapshot_utils.go
Colin Cross 0de8a1e17b Start using Providers instead of direct module access
Export information about static libraries, shared libraries and
exported flags through Providers instead of accessing the module
directly.  Much more is left to be converted, but this significantly
simplifies the dependencies on libraries with stubs by making it easy
for a module to masquerade as another by simply exporting the
providers from the other module.  Instead of depending on all the
versions of a library and then picking which one to use later, it
can depend only on the implementation variant and then select the
right SharedLibraryInfo from the variant.

Test: m checkbuild
Test: only expected changes to build.ninja
Change-Id: I1fd9eb4d251cf96ed8398d586efc3e0817663c76
2020-10-12 16:55:47 -07:00

105 lines
3.2 KiB
Go

// Copyright 2020 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cc
import (
"android/soong/android"
)
var (
headerExts = []string{".h", ".hh", ".hpp", ".hxx", ".h++", ".inl", ".inc", ".ipp", ".h.generic"}
)
type snapshotLibraryInterface interface {
libraryInterface
collectHeadersForSnapshot(ctx android.ModuleContext)
snapshotHeaders() android.Paths
}
var _ snapshotLibraryInterface = (*prebuiltLibraryLinker)(nil)
var _ snapshotLibraryInterface = (*libraryDecorator)(nil)
type snapshotMap struct {
snapshots map[string]string
}
func newSnapshotMap() *snapshotMap {
return &snapshotMap{
snapshots: make(map[string]string),
}
}
func snapshotMapKey(name string, arch android.ArchType) string {
return name + ":" + arch.String()
}
// Adds a snapshot name for given module name and architecture.
// e.g. add("libbase", X86, "libbase.vndk.29.x86")
func (s *snapshotMap) add(name string, arch android.ArchType, snapshot string) {
s.snapshots[snapshotMapKey(name, arch)] = snapshot
}
// Returns snapshot name for given module name and architecture, if found.
// e.g. get("libcutils", X86) => "libcutils.vndk.29.x86", true
func (s *snapshotMap) get(name string, arch android.ArchType) (snapshot string, found bool) {
snapshot, found = s.snapshots[snapshotMapKey(name, arch)]
return snapshot, found
}
func isSnapshotAware(ctx android.ModuleContext, m *Module, apexInfo android.ApexInfo) bool {
if _, _, ok := isVndkSnapshotLibrary(ctx.DeviceConfig(), m, apexInfo); ok {
return ctx.Config().VndkSnapshotBuildArtifacts()
} else if isVendorSnapshotModule(m, isVendorProprietaryPath(ctx.ModuleDir()), apexInfo) {
return true
}
return false
}
func copyFile(ctx android.SingletonContext, path android.Path, out string) android.OutputPath {
outPath := android.PathForOutput(ctx, out)
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Input: path,
Output: outPath,
Description: "Cp " + out,
Args: map[string]string{
"cpFlags": "-f -L",
},
})
return outPath
}
func combineNotices(ctx android.SingletonContext, paths android.Paths, out string) android.OutputPath {
outPath := android.PathForOutput(ctx, out)
ctx.Build(pctx, android.BuildParams{
Rule: android.Cat,
Inputs: paths,
Output: outPath,
Description: "combine notices for " + out,
})
return outPath
}
func writeStringToFile(ctx android.SingletonContext, content, out string) android.OutputPath {
outPath := android.PathForOutput(ctx, out)
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: outPath,
Description: "WriteFile " + out,
Args: map[string]string{
"content": content,
},
})
return outPath
}